Sherdog’s Top 10: Moments When Titles Changed Hands Stunning upsets, violent finishes and heated rivalries are all part of MMA’s volatile championship history.

Preview: UFC Fight Night ‘Mir vs. Duffee’ Heavyweights Frank Mir and Todd Duffee square off, as the Ultimate Fighting Championship returns to San Diego.

Anthony Smith: I'll Finish Him again. It'll Be Devastating and Beautiful at the Same Time. (PRESS RELEASE) -- On Saturday, July 18, 2015, Anthony Smith (21-10) will defend his Cage Fury Fighting Championships (CFFC) middleweight title in a rematch against the champion he took it from,...

Invicta FC 13 ‘Cyborg vs. Van Duin’ Results, Updates & Play-by-Play Sherdog.com's live Invicta FC 13 coverge kicks off at 11 p.m. ET.

Preview: UFC 189 ‘Mendes vs. McGregor’ Short-notice replacement Chad Mendes meets Conor McGregor for the interim featherweight title on Saturday in Las Vegas.

Bellator 139 Results, Updates & Play-by-Play Sherdog.com's live Bellator 139 coverage kicks off at 7 p.m. ET.

Bellator 138 Results: ‘Kimbo Slice vs. Ken Shamrock’ Play-by-Play & Updates Sherdog.com's live Bellator 138 coverage kicks off at 6:45 p.m. ET.

What to Watch For: Bellator 138 Ken Shamrock and Kimbo Slice will collide in an unlikely main event on Friday in St. Louis.

Opinion: ‘The King’ is the Ken I Want on Cable Yes, I'll be watching Ken Shamrock-Kimbo Slice this Friday night, but here's why I'd rather watch Ken Shamrock running around in vale tudo...

Preview: UFC Fight Night ‘Jedrzejczyk vs. Penne’ Newly minted strawweight champion Joanna Jedrzejczyk will defend her title for the first time on Saturday in Berlin.